120 FPS Cap?

Dear Forum,

I am Teodor and I am a Software Development Engineer. I am currently researching Triangle Splatting and .fbx files within Unreal Engine. I am currently using a setup with an NVIDIA GeForce RTX 2080 Ti GPU, a 12th Gen Intel® Core™ i7-12700K CPU and an AOC Gaming G2 Series 27’’ Gaming Monitor (27G2ZNE) 240Hz 0.5ms. I have been using Unreal Engine V5.5.4 to explore this 3D model of a garden scene that was built through Triangle Splatting. By using “Stat FPS” and “Stat UnitGraph” I was able to monitor the FPS and latencies (GPU and Frame). For some reason, I cannot get past 120FPS 8.34ms and it seems like Unreal Engine caps the FPS at 120. I have tried r.vsync 0 (disabling vertical sync), t.maxfps 0 (removing FPS cap), fixed frame rate disabled, smooth Frame Rate disabled (or set the max), min Desired Frame Rate 0 – but there still seems to be an internal cap at 120FPS. My setup should be able to handle FPS around 200 as I was able to see that in Unity with the same configurations and scene setups. Are there any known internal limitations or settings in Unreal Engine V5.5.4 that could be capping FPS despite all overrides? Do you have any ideas why I can’t get past 120FPS? I can provide screenshots or logs if helpful. Thank you so much in advance!

I have never been able to get this to work (even in UE4), instead I just set it to an extreme value like 9999.

I have no idea why it behaves this way, I can only guess there is a feature/setting conflict somewhere